diff --git a/apps/api/src/services/nvidia_provider.py b/apps/api/src/services/nvidia_provider.py
index 014395dc..b6d1e20c 100644
--- a/apps/api/src/services/nvidia_provider.py
+++ b/apps/api/src/services/nvidia_provider.py
@@ -659,7 +659,7 @@ class NvidiaProvider:
         prompt: str,
         model: str | None = None,
         temperature: float = 0.1,
-        max_tokens: int = 1024,
+        max_tokens: int = 2048,
     ) -> tuple[str, bool, int, float]:
         """
         一般對話 (非 Tool Calling) - 用於 RCA 分析